of Heuneburg, Germany. Seed and pod fragments have also been found in an Iron Age pit at Dragonby, North Lincolnshire, United Kingdom. The Hallstatt burials of the Hochdorf Chieftain's Grave and Hohmichele contained textiles dyed with woad. It is highly likely that woad was used as a dye in ancient Egypt.

Much has been made of a passage in Julius Caesar's [[Commentarii de Bello